If you are billing incident-to, the claim goes to your payor exactly as though your physician provided the service personally, hence the several requirements. I recall a few years ago one carrier wanting a specific modifier (maybe -SA) on the physician's claim. This is a payor policy only.
If you are not billing incident-to, then J & 31 have your PA's name and info. It's been a long time since I've set up CMS1500 forms, but I think 33 can be either the PA or the group, depending on how your practice is set up.
I just want to stress again that even practices that think their NPPs will only be incident-to are mistaken. Incident-to is a Medicare guideline not followed by all payors. Or your physician is off and a patient calls in the morning with a sore throat. Of course your PA is qualified to see and treat them. But it can't be incident-to. Patient with hypertension is coming in for BP check & Rx renewal being seen by PA. During the visit patient mentions left knee has been stiff with limited ROM and would like PT. In order to bill that visit incident-to, your PA would have to interrupt your physician, physician would have to actually see and evaluate the problem, not just stick their head in or co-sign the note.
It is possible to have a PA that is only incident-to, but you are then significantly limiting what the PA can do, and IMHO defeating the purpose of hiring the PA.